Biblioteca - Ingemmet

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Cobban, William A.

Characteristic marine molluscan fossils from the Dakota Sandstone and intertongued Mancos Shale, west-central New Mexico - Washington, D.C. U.S. Geological Survey 1977 - pp. 1-30 láms.

Subjects--Topical Terms:
AMMONOIDEA
CRETACEO
GASTROPODA
MOLLUSCA

Subjects--Geographic Terms:
ESTADOS UNIDOS